Our stay at Chalet a la Casa was lovely. It is a short walk to the ski bus to Matterhorn, and there was a elevator/lift available (because the short walk from town to the chalet is quite steep!). The room had everything we needed and was very comfortable. The owners (Anita & Andreas) were very accessible, helpful and accommodating.
My only concern is that we booked the apartment with the full expectation (based on the Hotels.com posting) that is included access to the hot tub and the sauna, which it DID NOT. That said, Anita & Andreas allowed us access to those facilities given that no one was staying in the Premium Chalet during our stay. This was much appreciated, but we would have been highly disappointed if it hadn't been possible.